CN110193524B

CN110193524B - Sector cable forming device and sector cable forming method

Info

Publication number: CN110193524B
Application number: CN201810939147.5A
Authority: CN
Inventors: 陈永树; 明亮; 关永刚
Original assignee: Sichuan Weipeng Cable Manufacturing Co ltd
Current assignee: Sichuan Weipeng Cable Manufacturing Co ltd
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2020-08-21
Anticipated expiration: 2038-08-16
Also published as: CN110193524A

Abstract

The invention discloses a sector cable forming device and a sector cable forming method, and belongs to the technical field of cable production and manufacturing. A fan-shaped cable forming apparatus comprising: the device comprises a fixed seat, a forming die with a forming hole and a pressing block; the forming die is arranged on the cable and located in the fixed seat, and the pressing block is fixed on the cable and located on the outer side of the fixed seat. The pressing block is extruded into a mould under the movement of the cable, the cable is extruded by the forming mould, and finally the cable is extruded into the fan-shaped cable. The invention has simple structure and simple and convenient operation, saves equipment cost and labor cost, not only can keep the contour dimension of the fan-shaped cables in the same batch consistent, but also can keep the contour dimension of the fan-shaped cables in the same size but in different batches consistent.

Description

Sector cable forming device and sector cable forming method

Technical Field

The invention relates to the technical field of cable production and manufacturing, in particular to a fan-shaped cable forming device and a fan-shaped cable forming method.

Background

The cable is generally formed by winding a plurality of wires, and the inside of the cable directly wound by the plurality of wires is provided with a gap. In the production and manufacturing process of the cable, in order to reduce the cost, a plurality of wound cables are often subjected to compression molding, the compressed cables are in a fan shape, at the moment, the sectional area of the cables is reduced, the consumption of corresponding insulating protective materials is also reduced, and the production and manufacturing cost of the cables is reduced.

And the forming device of conventional fan-shaped cable uses fixed compression roller and the compression roller frame that can reciprocate to extrude circular cable and be fan-shaped cable, when passing through forming device with circular cable at every turn, need not become flexible the compression roller frame, and circular cable compresses tightly after passing, and the clearance between compression roller and the compression roller frame can only rely on workman's experience for the overall dimension is inconsistent after the circular cable die mould of the same size but different batches.

Disclosure of Invention

The invention aims to provide a sector cable forming device and a sector cable forming method, which aim to solve the problem that the existing circular cables with the same size but different batches are inconsistent in external dimension after being pressed.

The technical scheme for solving the technical problems is as follows:

a fan-shaped cable forming apparatus comprising: the device comprises a fixed seat, a forming die and a pressing block;

the fixing seat is provided with a through hole, and the through hole comprises a frustum-shaped guide hole and a rope through hole which are communicated with each other and have coincident axes; the small end of the guide hole is connected with the through rope hole, and the diameter of the small end of the guide hole is larger than that of the through rope hole, so that a boss is formed at the joint of the guide hole and the through rope hole;

the forming die is arranged in the guide hole and is in a frustum shape matched with the guide hole, and the size of the small end of the forming die is the same as that of the boss; the forming die comprises a first forming part and a second forming part, and forming holes are formed in the first forming part and the second forming part along the axial direction of the forming die;

the briquetting is fixed on treating the fashioned cable to the briquetting corresponds the setting with the guiding hole.

The forming die is used for being sleeved on a cable, the first forming part and the second forming part are separated, and when the first forming part and the second forming part are closed, a round cable can be pressed into a fan-shaped cable. The pressing block is fixed on the cable and can move along with the movement of the cable. The cable moves under the drive of stranded conductor equipment, and the briquetting moves along with the removal of cable to get into in the guiding hole of fixing base, and extrusion forming die. Under the combined action of the pressure of the pressing block and the conical surface guiding action of the guide hole, the first forming part and the second forming part are gradually folded until the forming die is contacted with the boss, at the moment, the first forming part and the second forming part are folded, and the forming die presses the round cable into the fan-shaped cable. And then the pressing block is loosened, and the continuous molding of the fan-shaped cable can be realized. Due to the blocking effect of the boss and the matching effect of the forming die and the guide hole, the final form of the forming die is stable under the driving of the cable, and after the circular cables with the same size but different batches are pressed, the formed fan-shaped cables are consistent in overall size.

The forming die moves under the drive of the cable so as to reach the designated position, and the step of manual adjustment is omitted, so that the problem that the appearance sizes of the fan-shaped cables with the same size but different batches are inconsistent due to errors generated by manual adjustment can be avoided.

Furthermore, the guide hole and the forming die are in the shape of a truncated cone.

The guide hole in the shape of the truncated cone has a good guiding effect when matched with the forming die, the forming die is biased when initially sleeved on a cable in time, and can be rotationally adjusted under the guiding effect of the cone, so that the forming die is finally contacted with the boss.

Further, the taper of the guide hole and the taper of the forming die are both 5-20 degrees.

The taper of the invention is 5-20 degrees, the deformation stroke of the cable is longer, the cable deforms slowly, and the cable is convenient to form.

Furthermore, the molding holes comprise 3 molding surfaces, and the 3 molding surfaces are distributed in a triangular shape.

The 3 molding surfaces of the invention are used for extruding the cable, and extruding the round cable into the fan-shaped cable.

Further, the two molding surfaces are positioned on the first molding member, and the rest molding surfaces are positioned on the second molding member.

Further, the middle part of above-mentioned briquetting is equipped with the fixed orifices that matches with treating fashioned cable, and the briquetting includes first holder and second holder, and first holder and second holder form the fixed orifices, and first holder passes through the bolt and is connected with the second holder.

The pressing block is fixedly connected with the cable in a clamping mode, so that the pressing block is prevented from flying out in the pulling process.

Furthermore, the wall of the fixing hole is provided with a knurl; the fixed hole is internally provided with a rubber sleeve.

In order to increase the friction force between the fixing hole and the cable, the knurling arranged on the hole wall of the fixing hole and the rubber sleeve are both beneficial to fixing the pressing block and the cable.

A fan-shaped cable forming method based on the fan-shaped cable forming device comprises the following steps:

(1) fixing the fixed seat to enable the through hole to face the cable outlet direction;

(2) the cable penetrates through the through hole and is connected with the wire stranding equipment;

(3) sleeving a forming mold on the cable, and placing the forming mold in the guide hole to fix the forming mold on the cable;

(4) fixing a pressing block on the cable close to the guide hole;

(5) starting a wire stranding device to drive the cable to move, enabling the pressing block to enter the through hole along with the cable and press the forming die to enable the forming die to be in contact with the boss, and extruding the cross section of the cable into a fan shape from a circular shape;

(6) and closing the stranding equipment, loosening and taking out the pressing block from the cable, and then starting the stranding equipment to realize the continuous molding of the fan-shaped cable.

After the pressing block is taken out from the forming die, the cable still applies extrusion force to the forming die, and the forming die does not displace under the common extrusion of the cable and the boss in the manufacturing process of the fan-shaped cable, so that the consistency of the appearance sizes of the fan-shaped cables in the same batch is ensured. And the fan-shaped cables of the same size but different batches manufactured by the fan-shaped cable forming method of the invention keep consistent in external dimension.

Further, the axial direction of the cable coincides with the axial direction of the through hole.

The axial direction of the cable is overlapped with the axial direction of the through hole, so that the forming effect of the cable can be prevented from being influenced due to uneven stress of the forming die.

The invention has the following beneficial effects:

the invention has simple structure and simple and convenient operation, saves equipment cost and labor cost, not only can keep the contour dimension of the fan-shaped cables in the same batch consistent, but also can keep the contour dimension of the fan-shaped cables in the same size but in different batches consistent.

Drawings

FIG. 1 is a schematic structural view of a fan-shaped cable forming apparatus according to the present invention;

FIG. 2 is a schematic structural view of the fixing base of the present invention;

FIG. 3 is a schematic structural diagram of a forming mold of the present invention;

FIG. 4 is a schematic view of the present invention with the mold separated;

FIG. 5 is a schematic structural view of a briquette of the present invention;

FIG. 6 is a schematic structural diagram of the method for forming a sector cable of the present invention;

FIG. 7 is a schematic view of the connection of the cable of the present invention to a forming die when the cable is undeformed;

fig. 8 is a schematic view of the connection with the forming die when the cable of the present invention is deformed.

In the figure: 110-a fixed seat; 111-a via; 112-a pilot hole; 113-rope through hole; 114-a boss; 120-forming a mold; 121-forming holes; 122-a first molding; 123-a second profile; 124-molding surface; 130-briquetting; 131-a fixation hole; 132-a first clamp; 133-a second clamp; 134-rubber sleeve; 135-a lug; 140-cable.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Examples

Referring to fig. 1, a fan-shaped cable forming apparatus includes a fixing base 110, a forming mold 120 and a pressing block 130. The fixing base 110 is fixedly installed, the forming die 120 is disposed inside the fixing base 110, the pressing block 130 is disposed outside the fixing base 110, and the pressing block 130 and the forming die 120 are disposed in a horizontal direction.

Referring to fig. 1 and 2, the fixing base 110 is provided with a through hole 111 along a horizontal direction, i.e., a transverse direction of the fixing base 110, the through hole 111 sequentially includes a guide hole 112 and a rope passing hole 113 from left to right, and axes of the guide hole 112 and the rope passing hole 113 are overlapped. The guide hole 112 is in a cone frustum shape, the taper is 10 degrees, the small end of the guide hole 112 is communicated with the rope through hole 113, and the large end of the guide hole 112 is opposite to the fixed seat 110. The diameter of the rope through hole 113 is larger than the diameter of the cable 140 to be profiled and smaller than the diameter of the small end of the guide hole 112, that is, a boss 114 is formed at the joint of the rope through hole 113 and the guide hole 112, and the boss 114 is used for blocking the excessive displacement of the forming die 120 and preventing the forming die 120 from being blocked. In other embodiments of the present invention, the guiding hole 112 may also be a multi-frustum, such as a triangular frustum, a rectangular frustum, etc.; the taper may be anywhere between 5 ° and 10 °.

Referring to fig. 1, 3 and 4, the shape of the forming mold 120 matches the shape of the guiding hole 112, i.e. the forming mold 120 is also of a truncated cone shape, and the taper is consistent with the taper of the guiding hole 112. The forming die 120 is placed in the guide hole 112, and the placing direction of the forming die 120 is adapted to the placing direction of the guide hole 112, i.e. the outer side wall of the forming die 120 can contact with the hole wall of the guide hole 112. The outer diameter of the small end of the forming die 120 is the same as the outer diameter of the boss 114, i.e. when the forming die 120 contacts and matches with the boss 114, the outer side wall of the forming die 120 contacts and matches with the hole wall of the guide hole 112.

The middle part of the forming die 120 is provided with a forming hole 121 which is triangular on the whole along the axial direction, the forming hole 121 comprises 3 forming surfaces 124 which are distributed in a triangular shape, and the 3 forming surfaces 124 jointly extrude the round cable 140 into the fan-shaped cable 140. The forming mold 120 is cut along the middle of the forming hole 121 to form a first forming member 122 and a second forming member 123, the cut surfaces are close to and parallel to one forming surface 124, the forming surface 124 is located on the second forming member 123, and the other two forming surfaces 124 are located on the first forming member 122.

Referring to fig. 5, a fixing hole 131 is formed in the middle of the pressing block 130, and the pressing block 130 is fixedly connected to the cable 140 to be formed through the fixing hole 131. The inner wall of the fixing hole 131 is provided with knurling and the rubber sleeve 134 is provided in the fixing hole 131 for increasing a frictional force between the fixing hole 131 and the cable 140. The pressing block 130 is cut along the axis of the fixing hole 131 to form a first clamping member 132 and a second clamping member 133, and a gap is formed between the first clamping member 132 and the second clamping member 133. The cut edges of the first and

second clamping members

132 and 133 are each provided with a lug 135, and the lugs 135 of the first and

second clamping members

132 and 133 are respectively bolted. The pressing block 130 is fixedly installed on the cable 140 and located outside the fixing base 110, and the pressing block 130 is opposite to the guide hole 112, so that the pressing block 130 can enter the guide hole 112 from the large end of the guide hole 112. The cross-sectional area of the pressing block 130 is smaller than that of the forming die 120, so that the pressing block 130 can press the forming die 120 to a set position (the forming die 120 is in contact with the boss 114) without being locked in the guide hole 112.

Referring to fig. 6 to 8, a method for forming a sector cable based on the above-mentioned sector cable forming apparatus includes the following steps:

(1) fixing the fixing seat 110 so that the through hole 111 faces the cable outlet direction of the cable 140 and the axial direction of the cable 140 coincides with the axial direction of the through hole 111;

(2) the cable 140 passes through the through hole 111 and is connected with a wire stranding device;

(3) sleeving the forming mold 120 on the cable 140, and placing the forming mold 120 in the guide hole 112 to fix the forming mold 120 on the cable 140;

(4) the pressing block 130 is mounted on the cable 140 near the guide hole 112 and the screw is tightened for fixing;

(5) starting the wire twisting equipment to drive the cable 140 to move, enabling the pressing block 130 to enter the through hole 111 along with the cable 140 and press the forming die 120, enabling the forming die 120 to be in contact with the boss 114, and enabling the section of the cable 140 to be extruded into a sector shape from a circular shape;

(6) and (3) closing the stranding equipment, loosening and taking out the pressing block 130 from the cable 140, and then starting the stranding equipment to realize the continuous molding of the fan-shaped cable.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A fan-shaped cable forming apparatus, comprising: a fixed seat (110), a forming die (120) and a pressing block (130);

the fixing seat (110) is provided with a through hole (111), and the through hole (111) comprises a frustum-shaped guide hole (112) and a rope through hole (113) which are communicated with each other and have coincident axes; the small end of the guide hole (112) is connected with the rope through hole (113), and the small end diameter of the guide hole (112) is larger than the diameter of the rope through hole (113), so that a boss (114) is formed at the joint of the guide hole (112) and the rope through hole (113);

the forming die (120) is arranged in the guide hole (112), the forming die (120) is in a frustum shape matched with the guide hole (112), and the size of the small end of the forming die (120) is the same as that of the boss (114); the forming die (120) comprises a first forming part (122) and a second forming part (123), and the first forming part (122) and the second forming part (123) form a forming hole (121) along the axial direction of the forming die (120);

the pressing block (130) is fixed on a cable (140) to be formed, and the pressing block (130) is arranged corresponding to the guide hole (112);

the guide hole (112) and the forming die (120) are both in the shape of a truncated cone;

the molding holes (121) comprise 3 molding surfaces (124), and the 3 molding surfaces are distributed in a triangular shape.

2. The fan-shaped cable molding apparatus as claimed in claim 1, wherein the taper of the guide hole (112) and the taper of the molding die (120) are both 5 ° to 20 °.

3. The fan cable molding apparatus of claim 1, wherein two of the molding surfaces (124) are located on the first molding member (122) and the remaining molding surfaces (124) are located on the second molding member (123).

4. The sector-shaped cable forming device according to any one of claims 1 to 3, wherein a fixing hole (131) matched with a cable (140) to be formed is formed in the middle of the pressing block (130), the pressing block (130) comprises a first clamping piece (132) and a second clamping piece (133), the first clamping piece (132) and the second clamping piece (133) form the fixing hole (131), and the first clamping piece (132) is connected with the second clamping piece (133) through a bolt.

5. The fan-shaped cable forming device according to claim 4, wherein the wall of the fixing hole (131) is provided with knurling; a rubber sleeve (134) is arranged in the fixing hole (131).

6. A fan-shaped cable forming method based on the fan-shaped cable forming device of any one of claims 1 to 5, characterized by comprising the following steps:

(1) fixing the fixing seat (110) to enable the through hole (111) to face the cable outlet direction of the cable (140);

(2) the cable (140) penetrates through the through hole (111) and is connected with the wire stranding equipment;

(3) sleeving the forming mold (120) on the cable (140), and placing the forming mold (120) in the guide hole (112) to fix the forming mold (120) on the cable (140);

(4) fixing the pressing block (130) on the cable (140) close to the guide hole (112);

(5) starting a wire twisting device to drive the cable (140) to move, enabling the pressing block (130) to enter the through hole (111) along with the cable (140) and press the forming die (120), enabling the forming die (120) to be in contact with the boss (114), and extruding the cross section of the cable (140) into a fan shape from a circular shape;

(6) and (3) closing the stranding equipment, loosening the pressing block (130) from the cable (140), taking out the pressing block, and starting the stranding equipment to realize the continuous molding of the fan-shaped cable.

7. The fan-shaped cable molding method according to claim 6, wherein the axial direction of the cable (140) coincides with the axial direction of the through hole (111).